Research of initial texture influence of workpiece on the texture of finished pipes from the titanium alloy Ti–3Al–2,5V
Keywords:
texture, workpiece, deformation, radial and tangential components of the texture, parameters KearnAbstract
Purpose. To investigate the effect of the original texture of the workpiece on heredity of texture tube from alloy
Ti–3Al–2,5V after deformation and heat treatment to the finished size. Methodology. X-ray diffraction analysis was used for studding the pipes texture. The parent pipe after hot-pressing and one passing of cold deformation are used. The method of X-ray structure analysis are used for the pipe texture investigation and building of reverse pole figures. Kearns textured coefficients are taken into account. Findings. It is shown the parent pipe is textured. The correlation of radial and tangential component is in the range 46…48 % and 39…44 % correspondingly. Selected routes of deformation, rate of deformation the wall and diameter and calibration at all passes are not provided significant change of texture. Originality. Texture of alloy Ti–3Al–2,5V in the parent pipe and all changes in technological process are established. Evaluation of found textures effect on quality pipe indexes are established. Practical value. Optimization technology of manufacturing products of titanium and its alloys require knowledge of the laws of the texture formation in them in different types and plastic deformation and heat treatments modes that effect on the operation of quality index and working term of product.
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